Which of the following researchers is known for his/her work on the topic of stress and the workplace?

According to the chapter Mad About Youabout sex differences in jealousy,

in the Buss study, the first investigation had two items asking the same thing in a slightly different manner. This, in a sense, could be considered (a) an external reliability check (b) a measure of validity (c) an internal reliability check (d) a neurotic measure

During which period of language development do toddlers' experience rapid vocabulary

growth? a. Telegraphic speech b. Naming explosion c. Expressive language d. Holophrases